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Posted: Thu May 28, 2009 3:40 pm
by USGF
Moonbogg wrote:USGF wrote:JSR, Found some time to set up the pour. We had to heat the molds to around + 375° F before the tail started to fill nicely. Note the 9 volt battery and .177" (4.5mm) pellet in there for scale. Also a 2" UHMW blank for a pneumatic round we are planning. Oh, one of the first pellets that did not fill 100% was cut in half to show the skirt profile.
Will these molds be for sale at some point? Or would I have to come to you as a client? If for sale, any idea on a general price range for say a mold for 1 1/2" SCH10? I would love trying different materials to make the pellets out of. I have a rifled barrel that would be wicked with wax pellets or a more durable yet soft material.
Moonbogg, contact Jagerbond via PM. He will give you pricing. We are happy with the molds, we simply have to make various sizes. To adjust projectle weight, we have been making different tail inserts. You can supply us with a 3d Acad file for review if you want to design your own.
Posted: Thu May 28, 2009 3:51 pm
by Moonbogg
USGF wrote:Moonbogg wrote:USGF wrote:JSR, Found some time to set up the pour. We had to heat the molds to around + 375° F before the tail started to fill nicely. Note the 9 volt battery and .177" (4.5mm) pellet in there for scale. Also a 2" UHMW blank for a pneumatic round we are planning. Oh, one of the first pellets that did not fill 100% was cut in half to show the skirt profile.
Will these molds be for sale at some point? Or would I have to come to you as a client? If for sale, any idea on a general price range for say a mold for 1 1/2" SCH10? I would love trying different materials to make the pellets out of. I have a rifled barrel that would be wicked with wax pellets or a more durable yet soft material.
Moonbogg, contact Jagerbond via PM. He will give you pricing. We are happy with the molds, we simply have to make various sizes. To adjust projectle weight, we have been making different tail inserts. You can supply us with a 3d Acad file for review if you want to design your own.
Oh excellent! OK thanks. I'll consider designing a pellet and then contact Jagerbond.
Posted: Fri May 29, 2009 6:20 am
by jagerbond
Moonbogg wrote:USGF wrote:JSR, Found some time to set up the pour. We had to heat the molds to around + 375° F before the tail started to fill nicely. Note the 9 volt battery and .177" (4.5mm) pellet in there for scale. Also a 2" UHMW blank for a pneumatic round we are planning. Oh, one of the first pellets that did not fill 100% was cut in half to show the skirt profile.
Will these molds be for sale at some point? Or would I have to come to you as a client? If for sale, any idea on a general price range for say a mold for 1 1/2" SCH10? I would love trying different materials to make the pellets out of. I have a rifled barrel that would be wicked with wax pellets or a more durable yet soft material.
MoonBogg
If you can give me length estimate I can give you quote. Also, where did you get rifled AL barrel from?
Posted: Wed Nov 02, 2011 12:48 am
by jackssmirkingrevenge
Posted: Tue Nov 08, 2011 5:04 pm
by USGF
JSR,
You got a lathe now. Think you will machine similar molds anytime soon?
USGF
Posted: Tue Nov 08, 2011 11:00 pm
by jackssmirkingrevenge
Such big bore projectiles would not really be relevant to my perennial lack of space problem. I'm certainly interested in casting though, maybe not lead but resin.
I don't know if you had seen my "APFSDS" projectiles:
I have a feeling that mass produced, these could prove to be quite popular
Posted: Wed Nov 09, 2011 2:44 am
by USGF
jackssmirkingrevenge wrote:
I don't know if you had seen my "APFSDS" projectiles. I have a feeling that mass produced, these could prove to be quite popular
Need a large turn mill and some UHMW.... I sure'd like to see the damage video.
USGF
Posted: Wed Nov 09, 2011 3:20 am
by jackssmirkingrevenge
More
here
This was the damage of the larger sabot round vs what seems to be hardened 1/4" steel plate:
I didn't risk a video, indeed the nail ricocheted upwards somehow and shattered one of my light fittings :-/ but now that I have the casing, you can be sure that future tests (due this week) will be filmed close up with confidence
Posted: Wed Nov 09, 2011 7:20 am
by USGF
JSR,
Ram set pins? I thought we were gonna cut old truck axles. They are real hard. We got some 3" od UHMW bars here for fins......
I suspect Ramset pins are case hardened steel. Piano wire works pretty good, so does old needle gun pins. For bigger stuff, the shanks from small concrete busters work. They are hard!
Keep up the good work.
USGF
Posted: Thu Nov 10, 2011 2:04 am
by jackssmirkingrevenge
USGF wrote:Ram set pins? I thought we were gonna cut old truck axles. They are real hard. We got some 3" od UHMW bars here for fins......
I'll drag up this example again:
Remember
this conversation? Extending the above as an analogy, I'm sure that similar rounds in one of your big bore combustions would eat through steel plate like a frozen stick of butter through warm steel
Posted: Thu Nov 10, 2011 3:39 am
by al-xg
Extending the above as an analogy, I'm sure that similar rounds in one of your big bore combustions would eat through steel plate like a frozen stick of butter through warm steel
The next spudfiles challenge ?
Posted: Thu Nov 10, 2011 4:25 am
by jackssmirkingrevenge
al-xg wrote:The next spudfiles challenge ?
Slightly related, I think the mythbusters did a fairly shitty job with the "frozen bullet" theory...
Posted: Thu Nov 10, 2011 6:42 am
by Labtecpower
Slightly related, I think the mythbusters did a fairly shitty job with the "frozen bullet" theory...
I was thinking about that too...
How about using frozen body tissue or bone? It should have a lot better mechanical properties than plain ice...
Posted: Thu Nov 10, 2011 7:52 am
by jackssmirkingrevenge
Labtecpower wrote:How about using frozen body tissue or bone? It should have a lot better mechanical properties than plain ice...
They did it with frozen meat in Mythbusters but that's cheating...
